Q. Relative charge on neutron is

View solution

Q. Movement of positive rays is from holes in

View solution

Q. Atom is composed just of electrons and protons, this concept prevailed till

View solution

Q. Neutron was emitted by rearrangement of nuclei of beryllium and

View solution

Q. Smallest charge which was observed by Millikan was

View solution

Q. On platinum foil, when cathode rays strike foil produces

View solution

Q. Electron was name which was given by

View solution

Q. According to Rutherford atomic model on whole atom

View solution

Q. Lines of longer wavelengths are described by

View solution

Q. To provide low pressure in discharge tube we attach

View solution

Q. When electron changes its orbit from outer to inner energy is

View solution

Q. X Rays are analyzed by crystal of

View solution

Q. Noble prize was awarded to Chadwick in year

View solution

Q. Value of electron permittivity in Columb square per Joule per meter is

View solution

Q. Electrons should be filled in energy sub shells in order of increasing energy values, is principle of

View solution

Q. To discover electrons gas discharge tube is fitted with

View solution

Q. For heavier gases in positive rays production e\m ratio is

View solution

Q. Proton rays were discovered by

View solution

Q. Wavelength of green color is

View solution

Q. Letter 's' for azimuthal quantum number stands for

View solution